Mostly Wordless Wednesday: Anyone Recognize This Flowering Tree?

One of my AIIP11 conference roommates and I happened upon this tree on the way back from Fort Vancouver. Most trees in the area had yet to pop their leaves, but this one was going bonkers. And look at the flowers!

It has a trunk and size like a crepe myrtle (@walnutresearch in the foreground):

Mystery flowering tree-bush-plant-thing in Vancouver, WA. Fellow conference-goer trying to smell one of the flowers to see if they smell like roses.